Envelope



L. R. SNOW Feb. 23, 1937.

ENVELOPE Filed Deo, e, 1935 .wenZorJ .Easter R. Snow. 5H ,ZQ

Patented Feb.23,1937 2,071,439

AUNITED STATES eATENToFl-lca ,EPB

-I'SMD'LLTJKZ am puc comma (onzas-ss) This invention relates toenvelopes and parf and Ila: meet, the end of the envelope I is tieularlyto envelopes containing letters and the provided with a plurality ofalined perforations like intended tobe sealed and sent through the I6,which lineof perforations is parallel to the mail. I fold of the endflap Il.

5, 'I'he object of the present invention is to pro- The envelope I0 isadapted to receive an en- 5 vide an envelope which upon delivery may beclosure I1 which contacts with the upper end quickly opened withoutusing any tool for that of the fold of end flap Ila: at I5, and is thusprepurpose and without tearing or injuring the envented from movingendwise of said envelope. closure. y Obviously, therefore, .theenclosure I1 when l() This object is attained by the constructioniofinserted into the envelope cannot enter the trithe envelopes in themanner illustrated in the angular extension I4. accompanying drawing.The lineof perforations I8 in the'envelope i0 is For the purpose ofillustrating the invention at the edge 'of the enclosure I1 orimmediately one preferred form and two modified forms are beyond thesame. v

illustrated in the drawing, these forms having Consequently, whentheenvelope I0 contains 15 been found to give satisfactory results.although the enclosure I'I with the flap I3 sealed and it it is to beunderstood that the various instruis desired to open the same, a. personmay grasp mentalities of which the invention consists canbe the lowerend of the extension Il at |53: and

variously arranged and organized, and the invenseparate this extensionI4 from the body of the tion is not limited to the precise arrangementand envelope along the line of perforations I8.

organization of these instrumentalities as herein By doing this noenvelope opener, knife or shown and described except as required by theyother tool is required to open the envelope and scope of the appendedclaims. -the extension Il may be quickly removed with- Of the drawingout any danger of tearing or injuring any por- Q Figure 1 represents afront elevation of an ention of the enclosure. 25 velope embodying theprinciples of the present This is of considerable advantage asheretofore invention. in opening envelopes the enclosure is very liableFigure 2 represents a rear elevation of the same. to be torn o'rotherwise injured in theopening Figure 3 represents a longitudinalvertical secoperation. l

.m tion of same. y 'I'he inclined fold of the end ilap Ila: may be 30Figure 4 represents a front elevation of a modiinclined downwardly andoutwardly from the fled form of said envelope, a portion ofone cornerupper edge of the envelope as shown in Figs. 1, 2 being in section. and3, or it may be inclined upwardly and out- Figure 5 represents a rearelevation of same. wardly from the lower edge as shown in Figs. 4

.35 partly in section, andI and 5.

Figure 6 represents a rear elevation of another In Figs. 4 and 5 amodified form of envelope 35 modified form of envelope. is shown inwhich the extension I8 beyond the Similar characters indicate like partsthroughline of perforations I6 has a portion thereof out the severalfigures of the drawing. parallel to the edge of the fold Il at the oppo-0 In the drawing. l0 iS an envelOPe having side site end of the envelopewhile another portion 40 flaps Il, Ilm, over which extends a. lower flapI2 is inclined as at I9. secured to the side flaps II, I'I in the usualIn this lconstruction the inclined portion has a flap 20 which issecured to the end flap IIx, as

manner.

The upper end of the envelope has a closing shown in said Figs. 4 and 5.flap I3 which extends over the lower flap I2 This form of envelope hassome advantages 45 and is adapted to be secured thereto. as portions ofthe edges of both end flaps are The fold of the flap II is at rightangles toV parallel, thus making the envelope more conthe upper andlower edges of the envelope I0. venient for stacking and filing away inboxes or The fold of the side flap IIJ: is out of parallelin a chute ofa stamp cancelling machine. ism with the fold of the side flap Il andextends Another modified form of envelope is shown in at an angle fromthe top of the envelope I0 to Fig. 6 in which one end of the envelopehas the the bottom thereof. end flap Il folded over with its edgeperpen- By making the envelope in this manner one dicular to thelongitudinal upper and lower edges end has a right-angled triangularextension I4. of said envelope, while the opposite end has two From thepoint I5 where the folds of flaps i3 flaps 2| and 22 which are eachfolded over on 55 lines 28 and Il at an angle to each other and In thisform of envelope it would be necessary in order to open the envelope totear of! the extensions 26 and 21 by two operations, one from the top ofthe envelope and the other from the bottom oi' the envelope. l

In the form of envelope shown in Figs. 1, 2 3 the tearing off of theextension Il would be started from the bottom of the envelope, while inthe form shown in Figs. 4 and 5, the tearing off of the extension Ilwould be started from the top of the envelope. I

'Ihe prime object of the invention is to provide means whereby theenclosure I 1 will always beretained against the end Il leavingextensions Il, Il or 2i, 2l at the opposite end of the envelopecontaining no part of the enclosure and having lines of perforations Ilextending from the top to the bottom of the envelope whereby theseextensions may-be quickly torn on?, giving access to and permitting theremoval of the enclosure I1.

Ihe envelope in either one of these forms may be made cheaply andpossesses advantages which are not found in envelopes now in generaluse.

Envelopes have been made, however, with a line of perforations at oneend of the envelope parallel with an edge thereof which may be torn of!to give access to the enclosure but as far as is known none of theseenvelopes are provided with means for retaining the enclosure betweenthis line oi perforations and the opposite end of the envelope.

and

Consequently, when an envelope'of this character is used and the endtorn oi'f along the line of perforations, there is great liability oftearing on portions of the enclosure which obviously is' 'triangularextension having an outer fold at its hypotenuse, the front and rearwalls of said extension being disconnected except at said outer fold,said extension having a short horizontal side at one end andy beingseparable from the body of the envelope along a line of perforationsperpendicular to a longitudinal edge of the envelope and extendingthrough the front and rear walls thereof from the juncture of saidangular fold and said longitudinal edge.

2. An envelope provided with end aps extending toward each other andnearly to the center of the envelope, oneof which is folded at an angleto the fold of the other at the opposite end of the envelope to form aright angled extension the shortest side of which is alined with alongitudinal edge of the envelope, said'envelope having a line ofperforations extending from top to bottom thereof and parallel to saidopposite end and is provided with a bottom flap folded over and securedat its upper edge to both of said end ilaps.

LESTER R. SNOW.

